alexa Comparative Study Of Plants Waste Biosorption Efficiency
ISSN: 2157-7587

Hydrology: Current Research
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3rd International Conference on Hydrology & Meteorology
September 15-16, 2014 Hyderabad International Convention Centre, India

Ashish Kr. Dwivedi
Accepted Abstracts: Hydrol Current Res
DOI: 10.4172/2157-7587.S1.015
Abstract
In this study, sorption efficacy study of selected bio- materials was carried known for their potential usage as natural dyes. Hibiscus rosa sinensis flower and Trapa natans fruit skin (exocarp) were used for sorption study. These plant parts after the extraction of natural dye and evaluated for bio-sorption of heavy metal from effluent. Batch tests indicated that hexavalent chromium sorption capacity (qe) followed the sequence qe (Trapa) > qe (Hibiscus). Due to high sorptive capacity, Trapa fruit skin (exocarp) was selected for further processes like drying crushing and sieving in powder form of even mess size. Sorption kinetic data has shown first order reversible kinetic model for all the sorbents in which bio- sorption of chromium by Trapa natans biomass occurred in two stages. In the first stage, 95% sorption was reported for Cr (VI) in 15 minutes followed by a slower second stage which reached in equilibrium in one hour at which all heavy metals were 90-98% bio-sorbed by Trapa natans. Experimentally reported equilibrium data fitted well to both the Langmuir and Freundlich Isotherms. The FT-IR, XRD and XPS analysis showed that the main mechanism of Cr(VI) biosorption onto Trapa dried powder was their binding with amide group.
Biography
Ashish Kr. Dwivedi completed his PhD work from Indian Institute of Technology, Kanpur India in Applied/Environmental Chemistry under Dr. Padma S Vankar Principal Research Scientist Indian Institute of Technology, Kanpur. He is currently DST-Fast Track young scientist fellow in Department of Chemistry at Indian Institute of Technology, Kanpur. He has published 6 international publications in peer reviewed journals and 2 book chapters.
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